This is another article in the chapter Enormities from the classical manual on Sharia called Reliance of the Traveller. The articles are posted one by one in the order they are given in the book.
p34.0 BREACH OF FAITH
p34.1 Allah Most High says,
“Do not betray Allah and His messenger, nor knowingly betray your trusts” (Koran 8:27).
p34.2 The Prophet (Allah bless him and give him peace) said:
“Someone who cannot keep a trust is devoid of faith. Someone who cannot keep an agreement is devoid of religion.”
p34.3 A breach of faith in anything is very ugly but in some matters is worse than others. A person who cheats one for a pittance is not like a person who betrays one concerning one’s wife and money, perpetrating outrages.